diff --git a/store/src/main/java/org/apache/rocketmq/store/MappedFile.java b/store/src/main/java/org/apache/rocketmq/store/MappedFile.java
index 492ac5f26cf..50ac1862e3b 100644
--- a/store/src/main/java/org/apache/rocketmq/store/MappedFile.java
+++ b/store/src/main/java/org/apache/rocketmq/store/MappedFile.java
@@ -198,7 +198,7 @@ public AppendMessageResult appendMessages(final MessageExtBatch messageExtBatch,
         return appendMessagesInner(messageExtBatch, cb);
     }
 
-    public AppendMessageResult appendMessagesInner(final MessageExt messageExt, final AppendMessageCallback cb) {
+    private AppendMessageResult appendMessagesInner(final MessageExt messageExt, final AppendMessageCallback cb) {
         assert messageExt != null;
         assert cb != null;